Schweigen Hi Flow VX120 User manual

INSTALLATION GUIDE
Hi Flow VX120
Revision V2
HOME APPLIANCES
www.schweigen.com.au

Page 2
Index
1. Welcome ____________________________________________________________________________________________________ 3
2. Your Safety
Warning ______________________________________________________________________________________________________ 4
Before Installation __________________________________________________________________________________________ 4
Electrical Cord ______________________________________________________________________________________________ 4
Motor Features ______________________________________________________________________________________________ 5
General Notes on Installation and Use __________________________________________________________________ 5
Recommended Installation Distance ____________________________________________________________________ 5
Minimum Mounting Height ________________________________________________________________________________ 6
Avoidance of Back Flow __________________________________________________________________________________ 6
Safety of Children __________________________________________________________________________________________ 6
Replacement of Supply Cord ____________________________________________________________________________ 6
Why Flexi-duct ______________________________________________________________________________________________ 6
3. Description
Hi Flow VX120 Motor _______________________________________________________________________________________ 7
4. Installation
Roof Installation _____________________________________________________________________________________________ 8
Eaves Installation ___________________________________________________________________________________________ 11
Wall Installation _____________________________________________________________________________________________ 12
5. Back Draft Shutter System
Back Draft Shutter System for 150mm Ducting _________________________________________________________ 13
Installation example for Back Draft Shutter System (150mm Ducting) _________________________ 14
Back Draft Shutter System Fitment to Bell-mouth Adaptor ___________________________________ 15
6. Installation Examples
Single Motor Installation Example ________________________________________________________________________ 16
7. Measurements
Measurements for Hi Flow VX120 Motor__________________________________________________________________ 17
8. Flexible Duct
Shallow Roof Space ______________________________________________________________________ 18
Important Note ___________________________________________________________________________ 19
Securing Flexible Duct ____________________________________________________________________ 20
9. Maintenance
Roof Restoration or Cleaning ______________________________________________________________ 21
10. Warranty/Disclaimer _______________________________________________________________________________________ 22

Page 3
1. Welcome
Model
Purchase Date
Purchase Location
Thank you for purchasing your new Schweigen Hi Flow system.
To get the maximum output from this unit, please read through this operating guide before use
and installation.
The operating guide contains important information on the correct use and maintenance of the unit,
as well as important safety notes. This will ensure your personal safety and the lasting value of your
Schweigen Hi Flow system.
We trust that you will enjoy your new Schweigen Hi Flow system.
Please always retain your proof of purchase to aid in any warranty queries.
This appliance and its packaging are produced by processes that minimise waste and respect
the environment.
Please help us to continue this effort to protect the environment by using the appliance efciently
and dispose of the packaging in a responsible manner.

Page 4
2. Your Safety
Before Installation
We recommend this appliance to be installed or repaired by a qualied Schweigen Home
Appliances technician.
Please see our website www.schweigen.com.au for recommended installers.
It is dangerous to modify any part of this appliance. Modication of any kind, will immediately void
the warranty.
Do not install this Hi Flow motor to any non Schweigen and/or non-silent rangehood. If you do so,
your warranty will be void.
The manufacturer declines all responsibility in case of failure to adopt proper safety measures.
Ensure that the location in which this appliance is installed, has good and permanent ventilation.
Please consult local laws and regulations and install in accordance.
Use an electrical connector with earth that is correct for your location.
Check that the voltage in your area corresponds to the appliance as indicated on the rating label.
Electrical Cord
Ensure the supply cord is not exposed to heat, chemicals or sharp objects. If the supply cord is damaged,
it must be replaced by the manufacturer, service agent or a similarly qualied person in order to avoid
a hazard.
This guide is for the installation of a Hi Flow VX120 motor used in the Hi Flow system after the canopy/
rangehood or bathroom extraction grill has been mounted on the wall or ceiling. (Refer to canopy/
rangehood or bathroom extraction unit installation manual).
NOTE: All PVC pipe and exi ducting measurements are referring to inside measurements, unless
otherwise mentioned.
WARNING
Please read this section thoroughly before attempting to operate the
appliance. Inspect your product upon receipt. Any damage or defects
MUST be reported within 48 hours, or no claim will be recognised.
DO NOT INSTALL THIS APPLIANCE IF YOU FIND IT DAMAGED.
If this product is installed damaged, the supplier, nor the retailer, will be
responsible for the costs associated with the repair, replacement, removal
or re-installation of the appliances.

Page 5
2. Your Safety
Motor Features
• Universal mounting, all position with IPXS degree of weather protection
• Patented anti water intrusion system.
• Acoustic dome with super quiet, long vane, backward curved centrifugal fan.
• Airow is dependant on installation and the ducting used.
• Using a single 150mm exi duct run you should attain 600m3/hr depending on the ducting installation.
• Theuseofasmaller125pipewouldresultinalossofairow.
• Simple installation: - Mounts onto a 100mm PVC pipe for ultimate strength and allows for easy
Dektite roof sealing.
• Industrial quality motor and fan made in Germany and rated at 40,000 hours.
• Motor is a high efciency PSC type and rated at 62W, costing around the same as a 60W light
globe to run.
• WARRANTY 2 YEARS return to manufacturer. Covers faulty manufacturing or components. It does
not cover normal wear and tear, chemical or storm damage, etc.
General Notes on Installation and Use
This fan unit is designed to be installed using 100mm PVC pipe as the initial connection duct to the fan
module, and is supplied with a 100mm PVC pipe to 150mm exible duct bell-mouth adaptor.
Ducting runs should be more than 2 metres away from the unit and no more than 4 - 5 metres (check
with supplier if longer duct length required). Flexible ducting must be extended sufciently to present
a smooth air passage with bends of at least the radius of twice the diameter of the duct.
WARNING: The Hi Flow VX120 motor system must not be ducted into a wall cavity or a ceiling space
where a build up of grease can occur and become a potential re risk. This will void your warranty.
NOTE: Fan module and dual foil exi-duct are acoustically matched. Use of semi-rigid or rigid ducting
will result in increased noise and void warranty. See installation instruction notes ‘Why exi-duct’.
Recommended Installation Distance
For Hi Flow VX120 motor, a minimum of 3 metres (approx.) is recommended.
NOTE: Installation closer than these distances may result in higher air noise level. Maximum duct
length 4 - 5 metres. Check with supplier if longer length is required. Do not reduce the duct size at
any time and avoid sharp bends.

Page 6
2. Your Safety
Minimum Mounting Height
This fan unit is intended for mounting at a minimum height of 2.1 metres (measured to the lower part
of the fan impeller) above a oor or the ground.
Avoidance of Back Flow
Care should be taken to avoid the back ow of gases into the room from the open ue of gas or
other open re appliances.
Safety of Children
This appliance is not intended for use by children; or inrm persons with reduced physical, sensory or
mental capabilities; or people with lack of experience and/or knowledge, unless given supervision
or instruction concerning the use of the appliance by a qualied person responsible for their safety.
Children should be supervised to ensure that they do not play with the appliance; it is not a toy.
Replacement of supply cord
If the supply cord is damaged, it must be replaced by a service agent or suitably qualied person in
order to avoid a hazard.
Why Flexi-duct
Someinternetsitesstronglyrecommendtheuseofrigidductingoverfullyexibleducting.Thismay
well be the case with conventional rangehoods with internal motor rangehood.
Schweigen’s unique Hi Flow system works in the opposite way to conventional rangehoods, pulling
air through the hood and acoustically-matched ducting which results in almost silent, high volume
ow. Using a completely rigid or semi-rigid ducting system creates an undesirable ‘organ-pipe’ sound
effect similar to that of a didgeridoo, where noise is produced at one end then amplied at the
other.
The Hi Flow system eliminates any produced noise by externalising it.
Warning: Installation without the use of at least the minimum recommended length of acoustically
matched exi-ducting in the system will void performance expectations. Any installation problem
must be reported to Schweigen. Call outs relating to incorrect installation will result in a service fee
direct to the customer. Schweigen takes no responsibility for problems caused by faulty installation
and may void warranty. A preferred installer list can be obtained from Schweigen website
www.schweigen.com.au or call 1300 881 693.

Page 7
3. Description
Hi Flow VX120 Motor
Included in the box:
1. Hi Flow VX120 motor (280W x 200H mm approx.)
Approx. 3 metre, 10amp cable and standard male plug
2. Fire resistant 100mm (110mm OD1) PVC riser pipe
Note: Cable cut-out at the bottom end only
3. Flexible ducting
Approx. 4 metres, 150mm (160mm OD1) diameter
4. Bell-mouth adoptor ring
150mm duct to 100mm riser
Not included in the box:
A. (Optional) Back draft shutter for 150mm ducting
Refer to page 13 for more information.
B. (Optional) Back draft shutter tment to bell mouth
adaptor Refer to page 14 for more information.
• Roof seal kit / Dektite
• Support straps for poly pipe which connects to the
roof truss
• Gaffer tape / electrical tape
• Zip ties
1OD refers to outside dimension.
1 2
3
A
4
B

Page 8
4. Installation
Roof Mount Option
Eaves Mount Option
Wall Mount Option
Mounting Flange
100mm PVC Pipe
Dektite
Connect to
rangehoood
Bell-mouth adaptor
Slot option
20
min
20
min
Bell-mouth adaptor
Min 90mm long PVC pipe
Connect
to rangehood
To fan
Cover
Rangehood
Electrical connection
between rangehood
and remote fan
module
Connect to main power
Figure 1 The three options for mounting the unit.
IMPORANT
For more exible ducting instructions, refer page 19.
100 — 400
Ensure
clearance

Page 9
4. Installation
Roof Installation (Recommended duct length: 3 metre)
Mount the 100mm rigid PVC pipe securely to the beams, trusses or other appropriate structures, refer
gure 1.
The pipe should be mounted either vertical or perpendicular to the roof cladding with the roof
penetration being sealed using a Dektite or other sealing device.
Ensure that the pipe protrudes a minimum of 80mm past the top of the Dektite, checking that the
mounting ange clears the roof cladding at upper edge as shown in gure 1 — Roof Mount Option.
Maximum recommended protrusion is 400mm. Fit mounting ange, refer gure 2, to pipe using silicon
sealant, then tape in position until sealant has set.
Pass power cord and plug through mounting ange and pipe, then out the slotted end of the PVC
pipe for connection to the female plug coming from the canopy/rangehood or authorised switching
mechanism in bathroom application, refer gure 2.
Fit fan module to mounting ange by placing in position, rotating clockwise to engage bayonet ngers
then secure by screwing in locking screw (while holding fan module rmly in the fully clockwise position),
refer gure 2.

Page 10
4. Installation
Figure 2
Locking Screw
Fan Module
Roof Clading
Mounting Flange
Dektite
Roof Frame
100mm PVC Pipe
Secure pipe to structure
150mm exible ducting
5 metre max
Connect to
rangehood
Power cord
Bell-mouth adaptor
Slot pipe for power
cord exit. Cover with
ducting tape if required
Optional bend
Slot option
Roof Installation
IMPORANT
For more exible ducting instructions, refer page 19.
NOTE: Ensure that power cord is feed
through exit slot and is not allowed to
double back restricting fan inlet.

Page 11
4. Installation
Eaves Installation
After ensuring sufcient clearance exists for the mounting ange and ducting, refer gure 1, cut a
circular hole 165mm Ø, maintaining adequate clearances. The eaves sheeting should be reinforced.
Pre-drill mounting ange recess. Refer gure 3.
If access to the eaves space is restricted, before xing mounting ange to eaves, preassemble
mounting ange, PVC pipe, bell-mouth adaptor and exi-duct then feed up into roof space.
Remember to run power cord through the assembly and out the slotted PVC pipe wall, refer gure 3.
Fit fan module to mounting ange by placing in position, rotating clockwise to engage bayonet
ngers then secure by screwing in locking screw (while holding fan module rmly in the fully clockwise
position).
Ensure that one of the three
bayonet ngers is accessable
for securing locking screw
Bell-mouth Adaptor
Roof Cladding
Locking Screw
Pre-drill mounting
ange recess and
secure to reinforced
eaves sheet using #8
self tapping screws
Wall
Eaves
Top Plate
150mm Ducting
Roof Frame/Truss
Figure 3
IMPORANT
For more exible ducting instructions, refer page 19.
NOTE: Ensure that power cord
is feed through exit slot and is
not allowed to double back
restricting fan inlet.

Page 12
4. Installation
Figure 4
Wall Installation
The installation should be similar to eaves mounting if access to the inside is limited, but if unrestricted.
Refer to EAVES INSTALLATION and gure 4.
Min 20mm
NOTE: Ensure that power cord is feed
through exit slot and is not allowed to
double back restricting fan inlet.
Flexible 150mm ducting
Bell-mouth Adaptor
Min 90mm long PVC pipe
IMPORANT
For more exible ducting instructions, refer page 19.

Page 13
5. Back Draft Shutter System
Figure 5
Mount shutter system as close
to motor fan as practicable
Direction
of airow
Direction
of airow
To fan Flexi duct
Flexi duct
Use duct tape to secure
exi duct to shutter system
In line shutter system
Back Draft Shutter System for 150mm Ducting (optional)
This back draft shutter suitable for Hi Flow VX120 motor only.
Air ow
IMPORANT
If shutter system is mounted in the
horizontal position, shutter shaft
should be vertical. Part number: 150mm in line BDSS.

Page 14
5. Back Draft Shutter System
Installation Example for Back Draft Shutter System (optional)
(150mmDucting,refertogure5)
This back draft shutter suitable for Hi Flow VX120 motor only.
Verticle Installation
Figure 6 shows an example of verticle
installation. If space is allowed, it could be
installed near the ranghood outlet.
Horizontal Installation
If you have a narrow roof space, you can
install the back draft shutter horizontally,
refer to gure 7.
Figure 6 Figure 7
Back draft shutter
Back draft shutter
Air ow
Air ow
NOTE: Shutter
shaft should be
placed vertically.

Page 15
5. Back Draft Shutter System
Verticle Installation
Figure 9 shows an example of verticle installation.
Back Draft Shutter System Fitment to Bell-mouth Adaptor (optional)
This back draft shutter suitable for Hi Flow VX120 motor only. This back draft shutter system cannot be
installed in eave type installation.
Figure 8
Figure 9
Back draft shutter system
Bell-mouth adaptor
Fit exi-duct over shutter assembly
Tape over anges
100mm pipe
to fan
Direction
of airow
To fan
IMPORANT
If shutter system
is mounted in the
horizontal position,
shutter shaft should
be vertical.
Part number: 150 MMBDSS
Back draft shutter system
Tape over anges
Air ow

Page 16
6. Installation Examples
Single Motor Installation Example
Connect to rangehood
Connect to motor
Cover
Connect to
main power
Use reducer 150mm to 200mm
Use smooth owing curves for
maximum airow. Remove
excess ducting by trimming to
length. DO NOT install motor in
straight line to rangehood.
Figure 10

Page 17
7. Measurements
Measurements for Hi Flow VX120
Figure 12
157mm
110mm
195mm
278mm
28mm
35mm minimum
35mm
29mm
370mm

Page 18
8. Flexible Duct
Flexible Duct
Flexible ducting must be fully extended and cut to the required length upon installation, refer to
gure 13. Maximum fan performance will not be achieved unless the ducting is fully extended. Failure
to fully extend ducting results in a smaller air passage and lower airows. Incorrect installation may
reduce airow or increase noise levels. Call outs relating to incorrect installation will result in a service
fee directed to the customer. Schweigen will take no responsibility for problems caused by faulty
installation. Installation should be done by a qualied technician. A preferred installer list can be
obtained from Schweigen website www.schweigen.com.au.
Please keep the exible duct taut,
3 metres in length (recommended)
NOTE: In shallow roof spaces
extend exible duct horizontally
Figure 13

Page 19
8. Flexible Duct
Shallow Roof Space
In shallow roof spaces, do not crush or kink exible ducting, as it will reduce air ow severely.
90 degree curve PVC or galvanise curve can be used as a substitute for the bend, refer to gure 14.
Figure 14
Figure 15
90 degree curve PVC
or galvanise curve
Important Note
Please do not crush or kink exible ducting, as it will reduce air ow and may cause noise to occur
through the system. Ducting needs to be kept taut at all times.

Page 20
8. Flexible Duct
Securing Flexible Duct
Flexible duct must be installed with supports at maximum intervals of 1.5 metres. Flexible ductwork
can be supported by using gaffer or electrical tape. Provided that it does not restrict the internal
diameter of the ducting. Ducting installed looped over hanging beams should be installed in such
a manner as to ensure the changes of direction are gradual. Support of the ducting with the use of
hangers may be require, see option 2.
NOTE: Ducting should be kept taut at all times.
Figure 16 Examples of securing ducting
Option 1
Secure the exible
duct to the beam
Option 2
Support exible duct
by using hangers.
NOTE: Care shall
be taken to
minimize sagging or
snaking of the duct
between supports.
Gaffer or
electrical tape
Gaffer or electrical tape
Hanger